Glareless headlight



Patented Jan. 4, 1927.

/ UNITED STATES PATENT OFF-ICEQ JOHN G. AMES, OF LOS ANGELES,CALIFORNIA.

GLARELESS HEADLIGHT.

Application filed December 23, 1925, Serial No. 77,282.

. casing having reflecting inside walls and 1 with a lamp mounted in areflector positioned at the rear portion of the casing and inclineddownwardly to project through the lower part of a lens at the front ofthe casing. The upper portion of-the lens is preferably frosted,preventing any direct rays from being transmitted therethrough.

A particular feature of my invention is utilizing the cross reflectingrays of light from the reflector striking the side walls of the casing,such side walls reflecting these rays again in such manner as toilluminate the road close to the headlight and on both sides. The raysreflected against the upper frosted portion being prevented from beingobjectionable as above mentioned.

I may construct my headlight in different shapes, but in theillustrations show a rectangular construction or casing with arectangular lens in the front and a projecting lamp comprising a lampbulb with a curved reflector preferably of the parabolic type. Thereflector is mounted inside the casing at the rear end and adjacent thetop and inclined downwardly so that most of the rays of light from thelamp are projected through the lower half of the lens which istransparent.

My invention will be more readily understood from the followingdescription and drawings, in which- Figure 1 is a side elevation of myheadlight; omitting the details for fastening to the vehicle.

niuneral 1 is illustrated as rectangular, hav-- light ing top and bottomwalls 2 and 3 and -side walls 4 and 5. These walls are preferably formedwith reflecting surfaces on the inside. The rear 6 of the casing may bedenied or arched or other suitable construe tion merged into the top andbottom and the side walls. A lens 7, shown as rectangular is secured tothe front of the casing by means of an internal flange 8 "on the forwardend of the casing and a capping ring 9-having a flange 1O engaging theedge 11 of the lens and a flange 12 is secured to the walls of thecasing. If desired the side light 13 may be built into one or both sidesof the casing and is shown secured therein by heading 14. The'e sidelights would preferably be colored glass indicating conventionally aright and a left side.

The upper half 15'of the lens is preferably frosted or otherwise treatedso as to be translucent andv toprevent the passing of the direct rays oflight without diffusion. The lower half 16 of the lens is preferablytransparent.

A light reflector 17, shown as a curved reflector which maybe parabolicif desired, or any suitable shape adapted to reflect light,

is mounted in the back of the casing. The

mounting shown comprises an upper bracket 18 on which the reflector 17may slide. A stud 19 extends laterally from the flange 20 of thereflector and a focusing screw 21 is screw threaded in the stud-and issupported in the end of the casing having an adjusting nut head 22 onthe outside of the casing. This focusing screw is prevented fromlongitudinal movement through the casing by any suitable construction;this bemg shown as a washer 23 and a nut 24 .i

on the screw on the inside of the casing.

A lamp 25 is mounted in an ordinary type of lamp socket 26, fitting inthe tu bular bracket 18. The lead wires 27 pass from the socket througha thimble 28 in the rear wall of the casing.

From the above constructhm it will be noted that the reflector ismounted so that its axis is permanently inclined downward- 1y from theupper portion of the back of the casing and by means of an adjustingscrew the reflector 17 may be adjusted in and out in reference to thelamp in,..order to focus the lamp properly in such reflector. Thereforeit is possible with a properly designed reflector to project light, mostof which will have substantially parallel rays ill) and these will bedirected forward and ilahrough the lower transparent part of the ens.

Some of the rays of light which strike 'the upper part of the reflectorwill'be re- 'light reflected from the lower surface of the reflector 17upwardly and'downwardly from theupper surface of the casing, areprojected outwardly through the lower transparent half of the lens,thereby illuminating the road immediately in front of the headlight.

The rays of light projected from the side of the reflector, will bereflected from the sides ofthe casing, some of these passing through thelower transparent half of the lens, illuminating the side of the road,and

' others in the upper part of the casing striking the frosted part ofthe lens and being diffused.

The above description outlines the general path of the most of the raysof light; it will of course be understood, that there will be a certainamount of cross reflection in the casing, some of such cross reflectinglight passing through the lower part of the lens and illuminating theroad on the sides and immediately in front of the headlight, other raysbeing diffused through the frosted part.

I have not illustrated any particular manner of mounting the headlightas this does not form any particular part of my invention. Moreover, itis to be understood that ,the casing need not be rectangular nor squareas shown but may be made circular or any other suitable shape in crosssection. However, it is my intention that the walls be parallel to thecentral axis of the cas-v ing so that the light reflected cross' waysfrom the reflector will be reflected from the sides of the-casing,either through the clear lower section of the lens or diffused throughthe upper section;

It will also be manifest that my glareless headlight may be considerablychanged in general construction and in specific details to suitdifferent arrangements of supporting the reflector and different shapesof casings; such changes being within the scope of my invention as setforth in the description, drawings and 'claim.

Having described my invention, what I claim is:

A headlight comprising in combination a rectangular casing havingvertical side walls and horizontal top and bottom walls, a rectangularlens in the front of the easing, a closed rear wall for the casing, atubular bracket secured to the rear wall having its axis inclineddownwardly, said bracket being positioned in the upper portion of saidwall, a reflector having a flange siidably mounted on the outside of thesaid bracket, and a lamp mounted in said bracket, a stud extendinglaterally from the flange, a focusing screw threaded therein, and arotatable mounting for the screw in the back wall of the casing.

In testimony whereof I have signed my name to this specification.

JOHN G. rms.

